Eumeninae, Leach, 1815

Pannure, Arati & Carpenter, James M., 2016, Taxonomic studies on potter wasps (Hymenoptera: Vespidae: Eumeninae) of south India, Zootaxa 4171 (1), pp. 1-50 : 11-15

Key to the genera of Eumeninae from south India

1. Metasoma petiolate, T 1 in dorsal view usually longer, less than half as wide as T2 ( Figs 74–78 )....................... 2

- Metasoma not petiolate, T 1 in dorsal view usually broader, more than half as wide as T2 ( Figs 79–85 )................. 13

2. Mid tibia with two spurs ( Fig. 44 )........................................................................ 3

- Mid tibia with one spur ( Figs 45–47 )...................................................................... 4

3. Propodeal orifice narrow dorsally ( Fig. 37 ); submarginal carina strongly produced, propodeal valvula elongate and free from submarginal carina posteriorly ( Fig. 38 )....................................................... Zethus Fabricius

- Propodeal orifice broad and rounded dorsally ( Fig. 39 ); submarginal carina weakly produced, propodeal valvula and submarginal carina not free posteriorly ( Fig. 40 ).................................................... Discoelius Latreille

4. Mesosoma globular, as wide as high ( Fig. 13 )............................................................... 5

- Mesosoma more or less flattened dorso-ventrally, distinctly longer than high ( Fig. 14 )............................... 8

5. Pronotum without pretegular carina ( Fig. 17 ); T2 with apical lamella ( Fig. 72 )....................... Eumenes Latreille

- Pronotum with pretegular carina ( Fig. 18 ); T2 without apical lamella ( Fig. 73 ).................................... 6

6. T1 (petiole length) less than 1.25 × length of mesosoma, never shorter than mesosoma ( Fig. 64 )......... Delta de Saussure

- T1 (petiole length) 1.25 × or more length of mesosoma ( Fig. 65 )............................................... 7

7. Fore wing with prestigma longer than pterostigma ( Fig. 58 ); F11 of ♂ long and hooked ( Fig. 9 ).... Phimenes Giordani Soika

- Fore wing with prestigma shorter or equals pterostigma ( Fig. 59 ); F11 of ♂ short, not hooked ( Fig. 10 )................................................................................................ Oreumenoides (de Saussure)

8. Axillary fossa oval ( Fig. 25 ); propodeal valvula not fused to submarginal carina, submarginal carina produced as a pointeprocess above valvula ( Fig. 41 ); SMC2 basally truncate ( Fig. 55 ); Body size smaller than 10 mm ........................ 9

- Axillary fossa slit-like ( Fig. 26 ); propodeal valvula fused to submarginal carina, submarginal carina not produced as a pointed process above valvula ( Fig. 42 ); SMC2 basally acute ( Figs 56–61 ); Body size more than 10 mm ..................... 10

9. Female with a distinct subcircular fovea below median ocellus ( Fig. 3 ); metanotum unidentate ( Fig. 49 ); propodeum not produced; T 1 in dorsal view conspicuously swollen in apical half ( Fig. 66 )............................. Labus de Saussure

- Female without fovea below median ocellus; metanotum not unidentate, precipitous ( Fig. 35 ); propodeum with extensive horizontal portion, somewhat narrowed apically, behind the postscutellum, abruptly sloping posteriorly ( Figs 35 , 67 ); T 1 in dorsal view not conspicuously swollen in apical half ( Fig. 67 ).................................. Cyrtolabulus van der Vecht

10. Mesepisternum with epicnemial carina absent ( Fig. 15 )...................................................... 11

- Mesepisternum with epicnemial carina present ( Fig. 16 )...................................................... 12

11. Fore wing with prestigma longer than pterostigma ( Fig. 56 ); female with cephalic foveae ( Fig. 5 )... Pareumenes de Saussure

- Fore wing with prestigma shorter than pterostigma; female without cephalic foveae............. Pseumenes Giordani Soika

12. Mesoscutum without notauli ( Fig. 27 ); S1 transversely striate posteriorly ( Fig. 71 )............. Coeleumenes van der Vecht

- Mesoscutum with notauli; S1 irregularly rugose posteriorly................................ Pseudozumia de Saussure

13. SMC2 petiolate anteriorly ( Fig. 62 ); propodeal orifice narrow dorsally............... Alastor Lepeletier de Saint Fargeau

- SMC2 not petiolate anteriorly ( Figs 55-61 ); propodeal orifice broad and rounded dorsally.......................... 14

14. Anterior face of pronotum with two small, deeply impressed medial pits or foveae; which may be sparse ( Fig. 20 ), contiguous ( Figs 21, 22 ), or faint in some species..................................................................... 15

- Anterior face of pronotum without medial pits or foveae ( Fig. 19 ).............................................. 19

15. T1 without transverse carina........................................................................... 16

- T1 with transverse carina ( Figs 51–53 )................................................................... 17

16. Anterior face of pronotum with foveae coalesced, punctate laterally ( Fig. 21 ), T1 subsessile, in dorsal view usually narrower than T2 ( Fig. 79 ).............................................................. Paraleptomenes GiordaniSoika

- Anterior face of pronotum usually with foveae separated, smooth laterally; T 1 in dorsal view about as broad as T2........................................................................................ Stenodynerus de Saussure

17. T1 with two transverse carinae close together at crest of declivity ( Fig. 51 ); T1 wider than long in dorsal view ( Fig. 51 ).................................................................................. Subancistrocerus de Saussure

- T1 with one transverse carina ( Figs 52–53 ); T1 variable in dorsal view......................................... 18

18. Anterior face of pronotum with foveae separated ( Fig. 20 ); T1 smooth basally, forming acarinarium beneath apex of T1 that is often full of mites; T 1 in dorsal view wide and sessile ( Fig. 80 )............................. Parancistrocerus Bequaert

- Anterior face of pronotum with foveae coalesced (foveae contiguous) ( Figs 21, 22 ); T1 without acarinarium; T 1 in dorsal view longer than wide, T2 much wider than T1......................................... Pseudonortonia Giordani Soika

19. T1 with transverse carina ( Fig. 54 )................................................. Lissodynerus Giordani Soika

- T1 without transverse carina ( Figs 81–84 )................................................................. 20

20. T1 with transparent or translucent apical border ( Fig. 81 ).................................................... 21

- T1 without transparent or translucent apical border ( Figs 82–84 )...............................................23

21. Parategula not visible from above; tegulae posteriorely bent inwards ( Fig. 31 )................... Knemodynerus Blüthgen

- Parategula visible from above ( Figs 33, 35, 36 )............................................................. 22

22. Metanotum semicircular in shape from above ( Fig. 29 ); tegula exceeds parategula posteriorly ( Fig. 29 )................................................................................................... Antodynerus de Saussure

- Metanotum not semicircular in shape from above; tegula not exceeds parategula posteriorly....... Euodynerus Dalla Torre

23. Metanotum bidentate ( Fig. 48 )........................................................ Antepipona de Saussure

- Metanotum not dentate................................................................................ 24

24. Tegula never exceeds parategula posteriorly ( Fig. 36 ); axillary fossa much narrower than long, sometimes slit-like, ( Figs 30 , 36 )................................................................................................ 25

- Tegula usually exceeds parategula posteriorly, or at least equalling it ( Figs 32–33 ); axillary fossa oval, at least as wide as long ( Fig. 32 )........................................................................................... 29

25. Fore wing with prestigma half or less than the length of the pterostigma................. Stenodyneriellus Giordani Soika

- Fore wing with prestigma more than half the length of the pterostigma, often nearly equal ( Figs 60, 61 )................ 26

26. SMC3 separated from the apex of marginal cell by distance shorter than its minimum width ( Fig.60 )................................................................................................ Allorhynchium van der Vecht

- SMC3 separated from the apex of marginal cell by distance longer than its minimum width ( Fig.61 )................. 27

27. Scutum posteriorly and scutellum anteriorly smooth and impunctate ( Fig. 30 )...................... Rhynchium Spinola

- Scutum and scutellum punctate ( Fig. 29 ).................................................................. 28

28. Mesepisternum without epicnemial carina.............................................. Indodynerus Gusenleitner

- Mesepisternum with epicnemial carina present........................................ Anterhynchium de Saussure

29. T1 subsessile, in dorsal view narrower than T2 ( Fig. 85 )................................. Apodynerus Giordani Soika

- T1 sessile, in dorsal view about as wide as T2.............................................................. 30

30. Metanotum projecting over propodeum; propodeum with sclerotized dorsolateral projections ( Fig. 32 ); propodeum with submarginal carina not differentiated from valvula; SMC2 with second recurrent vein far from SMC3.................................................................................................. Xenorhynchium van der Vecht

- Metanotum not projecting over propodeum; propodeum without dorsolateral projections; propodeum with submarginal carina projecting as rounded lobe above valvula; propodeal valvula free from submarginal carina posteriorly; SMC2 with second recurrent vein nearly or completely interstitial with SMC3 ( Fig. 63 ).............................. Epsilon de Saussure

Figures

FIGURES 74 – 78. Metasoma, dorsal view. 74, Zethus ceylonicus; 75, Eumenes architectus; 76, Delta conoideum; 77, Oreumenoides edwardsii; 78, Coeleumenes i. impavidus.

FIGURES 79 – 85. Metasoma, dorsal view. 79, Paraleptomenes m. miniatus; 80, Parancistrocerus sp. (base of T 2 with acarinarium); 81, Euodynerus sp.; 82, Antepipona sp.; 83, Stenodyneriellus wickwari; 84, Rhynchium b. brunneum; 85, Apodynerus t. troglodytes.

FIGURES 37 – 47. Posterior surface of propodeum. 37, 38, Zethus ceylonicus; 39, 40, Discoelius sp.; 41, Labus pusillus; 42, Pareumenes brevirostratus; 43, Stenodyneriellus wickwari. 44, Discoelius sp.; 45, Pareumenes brevirostratus; 46, Rhynchium carnaticum; 47, Anterhynchium mellyi. 44 – 47. Legs.

FIGURES 13 – 18. Mesosoma, lateral view. 13, 18, Delta conoideum; 14, 15, Pareumenes brevirostratus; 16, Coeleumenes i. impavidus; 17, Eumenes architectus.

FIGURES 64 – 73. Metasoma. 64, 69, 73, Delta conoideum; 65, Phimenes flavopictus; 66, Labus pusillus; 67, Cyrtolabulus suavis; 68, 72, Eumenes architectus; 70, Discoelius sp.; 71, Coeleumenes i. impavidus.

FIGURES 55 – 63. Fore wing. 55, Labus pusillus; 56, Pareumenes brevirostratus; 57, Coeleumenes i. impavidus; 58, Phimenes flavopictus; 59, Oreumenoides edwardsii; 60, Allorhynchium argentatum; 61, Rhynchium carnaticum, 62, Alastor abditus; 63, Epsilon chikmagalurensis.

FIGURES 1 – 12. Head, frontal view. 1, Eumenes architectus; 2, Phimenes flavopictus; 3, Labus pusillus; 4, Antepipona sp.; 5, Pareumenes brevirostratus; 6, Coeleumenes i. impavidus; 7, Anterhynchium mellyi; 8, Xenorhynchium nitidulum; 9, P. flavopictus; 10, Oreumenoides edwardsii; 11, Zethus ceylonicus; 12, Delta e. esuriens. 9 – 12. ♂

FIGURES 25 – 30. Mesosoma, dorsal view. 25, Delta conoideum; 26, Pareumenes brevirostratus; 27, Coeleumenes i. impavidus; 28, Discoelius sp.; 29, Antodynerus limbatus; 30, Rhynchium carnaticum.

FIGURES 48 – 54. 48, Antepipona sp.; 49, Labus pusillus. 50, Anterhynchium mellyi. 51, Subancistrocerus sichelii; 52, Parancistrocerus sp.; 53, Pseudonortonia sp.; 54, Lissodynerus s. septemfasciatus. 48, 49. Posterior surface of mesosoma. 50. Posterior surface of propodeum. 51 – 54. T 1.

FIGURES 31 – 36. Mesosoma, dorsal view. 31, Knemodynerus coriaceus; 32, Xenorhynchium nitidulum; 33, Antepipona sp.; 34, Labus pusillus; 35, Cyrtolabulus suavis; 36, Stenodyneriellus wickwari.

FIGURES 19 – 24. Anterior face of pronotum. 19, Euodynerus sp.; 20, Parancistrocerus sp.; 21, Paraleptomenes m. miniatus; 22, Pseudonortonia sp.; 23, Apodynerus t. troglodytes; 24, Stenodyneriellu s wickwari.